diff options
Diffstat (limited to 'drivers/ssb/driver_pcicore.c')
| -rw-r--r-- | drivers/ssb/driver_pcicore.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c index 2faaa906d5d..059452fbb16 100644 --- a/drivers/ssb/driver_pcicore.c +++ b/drivers/ssb/driver_pcicore.c @@ -11,6 +11,7 @@ #include <linux/ssb/ssb.h> #include <linux/pci.h> #include <linux/delay.h> +#include <linux/ssb/ssb_embedded.h> #include "ssb_private.h" @@ -27,6 +28,18 @@ void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value) ssb_write32(pc->dev, offset, value); } +static inline +u16 pcicore_read16(struct ssb_pcicore *pc, u16 offset) +{ + return ssb_read16(pc->dev, offset); +} + +static inline +void pcicore_write16(struct ssb_pcicore *pc, u16 offset, u16 value) +{ + ssb_write16(pc->dev, offset, value); +} + /************************************************** * Code for hostmode operation. **************************************************/ @@ -117,8 +130,10 @@ static u32 get_cfgspace_addr(struct ssb_pcicore *pc, u32 addr = 0; u32 tmp; - if (unlikely(pc->cardbusmode && dev > 1)) + /* We do only have one cardbus device behind the bridge. */ + if (pc->cardbusmode && (dev >= 1)) goto out; + if (bus == 0) { /* Type 0 transaction */ if (unlikely(dev >= SSB_PCI_SLOT_MAX)) @@ -318,7 +333,16 @@ static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc) pcicore_write32(pc, SSB_PCICORE_ARBCTL, val); udelay(1); /* Assertion time demanded by the PCI standard */ - /*TODO cardbus mode */ + if (pc->dev->bus->has_cardbus_slot) { + ssb_dprintk(KERN_INFO PFX "CardBus slot detected\n"); + pc->cardbusmode = 1; + /* GPIO 1 resets the bridge */ + ssb_gpio_out(pc->dev->bus, 1, 1); + ssb_gpio_outen(pc->dev->bus, 1, 1); + pcicore_write16(pc, SSB_PCICORE_SPROM(0), + pcicore_read16(pc, SSB_PCICORE_SPROM(0)) + | 0x0400); + } /* 64MB I/O window */ pcicore_write32(pc, SSB_PCICORE_SBTOPCI0, |